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(C# UWP/WinRT) Download a Zip from a URL and OpenBd. (No .zip file is created)

Demonstrates how to download a .zip from a URL, opens the Zip, and gets the contents of a file. No file is ever written.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

Chilkat.BinData bd = new Chilkat.BinData();

// This URL is valid and can be tested...
bool success = await http.QuickGetBdAsync("http://chilkatdownload.com/example_data/hamlet.zip",bd);
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.Zip zip = new Chilkat.Zip();

// Open the zip from the bytes contained in bd.
success = zip.OpenBd(bd);
if (success == false) {
    Debug.WriteLine(zip.LastErrorText);
    return;
}

// Get the entry for the file we want..
Chilkat.ZipEntry entry = zip.GetEntryByName("hamlet.xml");
if (zip.LastMethodSuccess != true) {
    Debug.WriteLine(zip.LastErrorText);
    return;
}

// Convert all line endings to CRLF (if needed)
int lineEndingBehavior = 2;
string xmlStr = await entry.UnzipToStringAsync(lineEndingBehavior,"utf-8");
if (entry.LastMethodSuccess != true) {
    Debug.WriteLine(entry.LastErrorText);

    return;
}

// The XML in this case is about 274K, so let's just examine the last 20 lines...
Chilkat.StringBuilder sb = new Chilkat.StringBuilder();
sb.Append(xmlStr);

Debug.WriteLine(sb.LastNLines(20,true));


 

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